Semi-hollow Tyre with Peripheral Studs for Soil Crumbling

Solution Overview

Problem

Tires for agricultural equipment, particularly those with smooth surfaces, face challenges in extreme conditions such as dry or damp soil, where they fail to create necessary soil crumbling and water capture zones, and struggle with traction on light or heavy soils, and are not suitable for road travel without extensive cleaning.

Innovation Solution

The tires feature a domed profile with peripheral studs distributed in the circumferential direction, which introduce discontinuities in the soil to promote crumbling and water capture, and are designed to be self-cleaning and versatile for use on various soil types and road conditions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the tire has a smooth surface, then the tire maintains good road travel endurance and self-cleaning capability, but the tire fails to create soil crumbling and water capture zones in extreme conditions

Engineering Contradiction:

Improvesoil engagement capabilityVSAvoidsmooth furrow formation

Core Design Contradiction:

Adaptability or versatilityVSObject-generated harmful factors

Solution Approach 1:

The tire surface is designed with different local qualities: the tread area features peripheral studs for soil engagement and crumbling, while the sidewalls and other areas maintain smooth surfaces for road travel and self-cleaning. This local differentiation allows the tire to perform multiple functions effectively.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The tread surface is segmented into multiple discrete studs distributed in the circumferential direction, rather than a continuous pattern. This segmentation creates discontinuities in the furrow that promote soil crumbling and water capture zones while maintaining overall compatibility with road travel conditions.

Inventive Principle:

Principle #1Segmentation

2Adaptability or versatility

If the tire has a smooth tread, then the tire allows easy road travel, but the tire does not create discontinuous fracture zones to capture water on sloping ground

Engineering Contradiction:

Improvewater capture capabilityVSAvoidroad travel cleanliness

Core Design Contradiction:

Adaptability or versatilityVSEase of operation

Solution Approach 1:

The tire surface is designed with different local qualities: the tread area features peripheral studs for soil engagement and crumbling, while the sidewalls and other areas maintain smooth surfaces for road travel and self-cleaning. This local differentiation allows the tire to perform multiple functions effectively.

Inventive Principle:

Principle #3Local quality

3Adaptability or versatility

If the tire has a smooth surface, then the tire maintains self-cleaning capability, but the tire cannot effectively engage with light or heavy soils

Engineering Contradiction:

Improvetraction on various soilsVSAvoidtire surface structure

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The tire surface is designed with different local qualities: the tread area features peripheral studs for soil engagement and crumbling, while the sidewalls and other areas maintain smooth surfaces for road travel and self-cleaning. This local differentiation allows the tire to perform multiple functions effectively.

Inventive Principle:

Principle #3Local quality

Data Source

PatentEP1972467B1Semi-hollow tyre, in particular for a farming machine

Publication Date: 2009.12.23 OTICO

Figure 1~2b
Figure 3a~4b
Figure 5a~6b

AI summary

This tire (14) is a semi-hollow type for agricultural machinery, particularly for a machine with a roller equipped with a series of tires mounted on a horizontal tube (12). Each tire comprises a central casing (26) and at least one tread section with a domed profile, having a tread (24) connected to the casing (26) by two sidewalls (28, 30) so as to define a hollow annular space (32) with a cross-section reduced compared to the cross-section of the domed profile. It further comprises a plurality of peripheral lugs (34) projecting from the tread (24) and distributed in the circumferential direction around the radius of the domed profile. Alternatively, the tire may be fitted to an individual wheel.